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| Thu 15 Oct 2026
Beijing, Oct. 15 -- Jinchuan Group Nickel & Cobalt has obtained a patent for quick sludge discharging device of water sump for underground mining of mine. This invention was developed by Wang Xiaoping, Zhang Linlin, Kou Yongyuan, Jia Feng, Kang Longping, Ma Sulong, Yang Qingwei, Li Zhengjie, Meng Zhong, Cui Baoyan, Yao Nini, Mi ..